Welcome to the Community, @Jean9.

I tried this on my end and you didn't do anything wrong. The reason the inactive accounts are still showing in the report is there are transactions assigned to them. These accounts will appear even if you customize to report to show only the active ones.

I've added a screenshots as your reference.

Check out this article for more information about chart of accounts: Understand QuickBooks Chart of Accounts.

Just in case, you may check this article for future reference about customizing a report in QuickBooks Desktop: Customize reports in QuickBooks Desktop.

lease know that you're always welcome to post if you have any other concerns. Community Team will always here to help.